package android.bus.util;

import android.annotation.TargetApi;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;

/**
 * Factory to allow injecting a more complex exception mapping; typically you would subclass one of {@link Honeycomb} or
 * {@link Support}.
 */
public abstract class ErrorDialogFragmentFactory<T> {
	protected final ErrorDialogConfig config;

	protected ErrorDialogFragmentFactory(ErrorDialogConfig config) {
		this.config = config;
	}

	/**
	 * Prepares the fragment's arguments and creates the fragment. May be overridden to provide custom error fragments.
	 */
	protected T prepareErrorFragment(ThrowableFailureEvent event, boolean finishAfterDialog,
			Bundle argumentsForErrorDialog) {
		if (event.isSuppressErrorUi()) {
			// Show nothing by default
			return null;
		}
		Bundle bundle;
		if (argumentsForErrorDialog != null) {
			bundle = (Bundle) argumentsForErrorDialog.clone();
		} else {
			bundle = new Bundle();
		}

		if (!bundle.containsKey(ErrorDialogManager.KEY_TITLE)) {
			String title = getTitleFor(event, bundle);
			bundle.putString(ErrorDialogManager.KEY_TITLE, title);
		}
		if (!bundle.containsKey(ErrorDialogManager.KEY_MESSAGE)) {
			String message = getMessageFor(event, bundle);
			bundle.putString(ErrorDialogManager.KEY_MESSAGE, message);
		}
		if (!bundle.containsKey(ErrorDialogManager.KEY_FINISH_AFTER_DIALOG)) {
			bundle.putBoolean(ErrorDialogManager.KEY_FINISH_AFTER_DIALOG, finishAfterDialog);
		}
		if (!bundle.containsKey(ErrorDialogManager.KEY_EVENT_TYPE_ON_CLOSE)
				&& config.defaultEventTypeOnDialogClosed != null) {
			bundle.putSerializable(ErrorDialogManager.KEY_EVENT_TYPE_ON_CLOSE, config.defaultEventTypeOnDialogClosed);
		}
		if (!bundle.containsKey(ErrorDialogManager.KEY_ICON_ID) && config.defaultDialogIconId != 0) {
			bundle.putInt(ErrorDialogManager.KEY_ICON_ID, config.defaultDialogIconId);
		}
		return createErrorFragment(event, bundle);
	}

	/** Returns either a new Honeycomb+ or a new support library DialogFragment. */
	protected abstract T createErrorFragment(ThrowableFailureEvent event, Bundle arguments);

	/** May be overridden to provide custom error title. */
	protected String getTitleFor(ThrowableFailureEvent event, Bundle arguments) {
		return config.resources.getString(config.defaultTitleId);
	}

	/** May be overridden to provide custom error messages. */
	protected String getMessageFor(ThrowableFailureEvent event, Bundle arguments) {
		int msgResId = config.getMessageIdForThrowable(event.throwable);
		return config.resources.getString(msgResId);
	}

	public static class Support extends ErrorDialogFragmentFactory<Fragment> {

		public Support(ErrorDialogConfig config) {
			super(config);
		}

		protected Fragment createErrorFragment(ThrowableFailureEvent event, Bundle arguments) {
			ErrorDialogFragments.Support errorFragment = new ErrorDialogFragments.Support();
			errorFragment.setArguments(arguments);
			return errorFragment;
		}

	}

	@TargetApi(Build.VERSION_CODES.HONEYCOMB)
	public static class Honeycomb extends ErrorDialogFragmentFactory<android.app.Fragment> {

		public Honeycomb(ErrorDialogConfig config) {
			super(config);
		}

		protected android.app.Fragment createErrorFragment(ThrowableFailureEvent event, Bundle arguments) {
			ErrorDialogFragments.Honeycomb errorFragment = new ErrorDialogFragments.Honeycomb();
			errorFragment.setArguments(arguments);
			return errorFragment;
		}

	}
}